Finding the Third Proportional to 4,658,274 and 9,876,418

Step by Step Solution

1. Step 1: Write the proportion equation
   4,658,274 : 9,876,418 = 9,876,418 : x
2. Step 2: Convert to fraction form
   4,658,274/9,876,418 = 9,876,418/x
3. Step 3: Cross multiply
   4,658,274x = 9,876,418 × 9,876,418
4. Step 4: Simplify right side
   4,658,274x = 97,543,632,510,724
5. Step 5: Solve for x
   x = 97,543,632,510,724/4,658,274
6. Step 6: Final answer
   x = 20,939,865.82